声屏障顶端降噪器研究进展  

Recent Technical Development of Edge-modified Noise Barriers

作　　者：尹皓[1] 朴泰善 曾凤柳[1] 白晓军[1] 步青松[1] 李龙煜 姜召福 

机构地区：[1]中国铁道科学研究院节能环保劳卫研究所,北京100081 [2]青岛佰世坤科技有限公司,山东青岛266109

出　　处：《铁路节能环保与安全卫生》2012年第4期172-175,共4页Railway Energy Saving & Environmental Protection & Occupational Safety and Health

摘　　要：声屏障顶端降噪器通过其特有的声学结构,降低声屏障绕射声的影响,是直立式声屏障重要而必要的补充,以便提高声屏障的总体降噪效果。对声屏障顶端降噪器的降噪原理进行了分析,对目前国内外声屏障顶端降噪器的研究现状进行了介绍。The edge-modified noise barriers are based on its unique acoustic structure to reduce the influence of the diffraction sound.In order to improve the overall reduction effect of noise barriers,the edge-modified noise barriers are the important and necessary supplements of upright type noise barriers.The noise reduction principle of the edge-modified noise barriers is analyzed,and the recent technical development is introduced.

关 键 词：铁路噪声 噪声控制 顶端降噪器 

分 类 号：TB53[理学—物理]